Effect of temperature and pH on absorption of carbon dioxide by a free level of mixed solutions of some buffers.
The rate of absorption of carbon dioxide by solutions of NaHCO3, KH2PO4, hydrogencarbonate, phosphate and borate buffers at 20, 30 and 40 degrees C was determined manometrically. The absorption rate increases for all buffers tested with increasing pH. The CO2 absorption rate by KH2PO4 and by the phosphate buffer at low pH is lower than that of water. For other buffers tested it is equal to or higher than that of water, especially at higher temperatures.
D000042:Absorption; D002021:Buffers; D002245:Carbon Dioxide; D006863:Hydrogen-Ion Concentration; D013696:Temperature; D014867:Water
D002021:Buffers; D014867:Water; D002245:Carbon Dioxide